Effect of reduced salinity on the great scallop (Pecten maximus) spat at two rearing temperatures

Christophersen, Gyda; Strand, Øivind

doi:10.1016/s0044-8486(02)00094-7

Cited by 38 publications

(30 citation statements)

References 12 publications

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“…Transfer of 2 mm P. maximus to a sea-based nursery has been shown to be fatal at temperatures below 7°C, whereas elevated growth and survival occurred from 10°C (Christophersen and Magnesen 2001). Comparing experimental rearing temperatures, 18°C gave faster growth and higher spat survival during 25 days (92% vs. 75%) than a temperature of 15°C (Christophersen and Strand 2003).…”

Section: Culture Environmentmentioning

confidence: 88%

“…Growth rates of spat of P. maximus surviving short-term exposure to salinity of 20-25 ppm (6 h·day -1 ) showed soon recovery to normal levels (Laing 2002). The best growth of 2 mm shell height spat was obtained at the combination of temperature 18°C and a salinity of 30 ppm, whereas survival was equal for spat reared at the salinities 25 and 30 ppm (Christophersen and Strand 2003). Likewise Laing (2002) obtained highest growth of 6-10 mm shell height spat of P. maximus at a salinity of 30 ppm compared with 26 and 28 ppm when temperature ranged 13-21°C.…”

Section: Culture Environmentmentioning

confidence: 97%

“…Long-term exposure to a salinity of 20 ppm was shown detrimental to 2 mm spat, and reduced growth was shown at a salinity of 25 ppm compared with 30 ppm (Christophersen and Strand 2003). Laing (2002) concluded that a salinity of 30-35 ppm had no apparent effect on growth, condition, food consumption, or survival.…”

Section: Culture Environmentmentioning

confidence: 99%

See 2 more Smart Citations

Spat production of the great scallop (Pecten maximus): a roller coaster¹This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

2011

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The great scallop (Pecten maximus (L., 1758)) has been of interest for aquaculture in Europe since the early 1970s. Since then, a large part of the research and development has focussed on reproduction and early life stages to support hatchery production of spat. Results from the last two decades show that production stability is lacking and have followed a roller-coaster trend. Production strategy varies, but in general, broodstock are collected from the wild and conditioned to gonad maturity sufficient for successful spawning. Natural reproduction cycle varies between populations, which is a challenge to hatcheries aiming at stable year-round production. Larval survival was for many years dependent on addition of antibiotics until a flow-through culture was established, and seasonal variation may be caused by variation in gamete or seawater quality. Settlement, metamorphosis, and spat growth depend on healthy larvae and appropriate culture environment. For efficient spat production, the use of land-based nurseries is promising. Results show that mean yield of spat from eggs is less than 1%. The review concludes that the gap between results obtained in hatchery production and in experiments shows a great potential for production increase.Résumé : L'aquaculture européenne s'intéresse au grand pétoncle (Pecten maximus (L., 1758)) depuis le début des années 1970. Depuis lors, une partie importante de la recherche et du développement s'est concentrée sur la reproduction et les premiers stades de vie afin de favoriser la production de naissains en culture. Les résultats des deux dernières décennies montrent qu'il manque une stabilité dans la production et que les tendances ressemblent à des montagnes russes. Les stratégies de production varient, mais généralement le stock reproducteur est récolté en nature et conditionné jusqu'à la maturité des gonades pour obtenir une fraie réussie. Le cycle de reproduction naturelle varie d'une population à l'autre, ce qui présente un défi pour les cultures qui visent une production stable à l'année. La survie des larves a dépendu pendant de nombreuses années de l'addition d'antibiotiques jusqu'à qu'on mette au point une culture avec système de circulation; la variation saisonnière peut être due à la variation dans la qualité des gamètes ou de l'eau de mer. La fixation, la métamorphose et la croissance du naissain dépendent de la santé des larves et de la présence d'un milieu approprié de culture. Pour une production efficace du naissain, l'utilisation de nourriceries en milieu terrestre est prometteuse. Les résultats indiquent que le rendement moyen du naissain à partir des oeufs est de moins de 1 %. Notre rétrospective conclut que l'écart entre les résultats obtenus par aquaculture et en laboratoire montre qu'il existe un fort potentiel pour l'accroissement de la production.[Traduit par la Rédaction]

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Section: Culture Environmentmentioning

confidence: 88%

Section: Culture Environmentmentioning

confidence: 97%

See 1 more Smart Citation

Spat production of the great scallop (Pecten maximus): a roller coaster¹This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

2011

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“…Although such relationships are inherently dynamic, distributions have been related to a range of environmental features, including sea surface and bottom temperature (Jensen et al 2005), salinity (Christophersen & Strand 2003), water depth (Katsanevakis 2005), and food availability (Cusson & Bourget 2005).…”

Section: Introductionmentioning

confidence: 99%

Identifying environmental constraints at the edge of a species range: scallop Psychrochlamys patagonica in the SW Atlantic Ocean

Gutiérrez¹,

Martínez²,

Defeo³

2008

Mar. Ecol. Prog. Ser.

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“…Previous studies identified temperature as a direct or indirect primary control influencing growth cessation and, hence, the formation of dark growth increments in shallow-water mollusks (e.g., Mercenaria: Kraeuter and Castagna, 2001 and references therein; Macoma: Beukema et al, 1985;Crassostrea: Brown, 1988;Wang et al, 1995;Kirby, 2001; however see Surge et al, 2001;Ostrea: Milner, 2001;Phacosoma: Tanabe and Oba, 1988;Schöne et al, 2003;Patella: Fenger et al, 2007). Decreased salinity below biological tolerance can produce nonannual disturbance lines (Barker, 1964;Almada-Villela et al, 1984;Craig et al, 1988;Christophersen and Strand, 2003;Gillikin et al, 2005). Salinity stress is probably not an important factor in our study because the collection site in Pine Island Sound receives limited freshwater runoff from Pine Island (Rudolph, 2000).…”

Section: Isotope Sclerochronology Of Mercenaria Genotypesmentioning

confidence: 96%

Isotope sclerochronology of Mercenaria mercenaria, M. Campechiensis, and their natural hybrid form: Does genotype matter?

Surge¹,

Kelly²,

Arnold³

et al. 2008

PALAIOS

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Isotopic variation in northern and southern hard clam (quahog)shells is used in studies including paleoecology, paleoclimatology, and archaeology. It is unknown, however, whether species-specific isotopic differences exist. Three genotypes-Mercenaria mercenaria, M. campechiensis, and their natural hybrid form-are found in coastal Florida waters and differentiation of genotypes can be difficult to determine morphologically. This issue may be problematic when using archaeological shells as paleoclimate archives, because genetic analysis cannot be done on such specimens. Their co-occurrence in coastal Florida waters provides a unique opportunity to study whether all three genotypes of modern individuals record the same environmental information preserved as variation in oxygen and stable carbon isotope ratios. A random sample of 49 individuals collected alive at the same time and from the same locality in Pine Island Sound were classified to genotype using allozyme electrophoresis. Three juveniles from each genotype were selected for isotopic analysis to control for ontogenetic effects. Timing of growth increment formation inferred from oxygen isotope ratios reveals similar overall patterns wherein dark (slow growth) increments formed in mid-to late spring and light (fast growth) increments formed in late fall. Results of the mixed model ANOVA (analysis of variance) indicate that no significant species-related differences exist in the variation of oxygen and carbon isotope ratios, although the Kolmogorov-Smirnov goodness-of-fit test detected a systematic difference among ␦ 13 C values of M. mercenaria and M. campechiensis comparison and M. mercenaria and the hybrid shell comparison. Any genotype or combination thereof is, thus, suitable for environmental and climate reconstruction using oxygen isotope ratios. The utility of carbon isotope ratios as an environmental proxy, however, remains questionable.

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Effect of reduced salinity on the great scallop (Pecten maximus) spat at two rearing temperatures

Cited by 38 publications

References 12 publications

Spat production of the great scallop (Pecten maximus): a roller coaster¹This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

Spat production of the great scallop (Pecten maximus): a roller coaster¹This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

Identifying environmental constraints at the edge of a species range: scallop Psychrochlamys patagonica in the SW Atlantic Ocean

Isotope sclerochronology of Mercenaria mercenaria, M. Campechiensis, and their natural hybrid form: Does genotype matter?

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Effect of reduced salinity on the great scallop (Pecten maximus) spat at two rearing temperatures

Cited by 38 publications

References 12 publications

Spat production of the great scallop (Pecten maximus): a roller coaster1This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

Spat production of the great scallop (Pecten maximus): a roller coaster1This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

Identifying environmental constraints at the edge of a species range: scallop Psychrochlamys patagonica in the SW Atlantic Ocean

Isotope sclerochronology of Mercenaria mercenaria, M. Campechiensis, and their natural hybrid form: Does genotype matter?

Contact Info

Product

Resources

About

Spat production of the great scallop (Pecten maximus): a roller coaster¹This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

Spat production of the great scallop (Pecten maximus): a roller coaster¹This review is part of a virtual symposium on current topics in aquaculture of marine fish and shellfish.

Identifying environmental constraints at the edge of a species range: scallop Psychrochlamys patagonica in the SW Atlantic Ocean